White tea light candles spelled out RIP LOUIE at a makeshift memorial for Louis Haynie, the 19-year-old stabbed to death early Sunday on Elberon Place.

Shortly after 1 a.m., Haynie and a 20-year-old man were rushed to Albany Medical Center Hospital, where Haynie was pronounced dead. The other victim is being treated for non-life-threatening injuries, police said Monday.

Police spokesman Officer Steve Smith said the men were affiliated with two groups that are fighting with each other but did not classify it as gang activity. Police did not identify the wounded man and would not say if the two men had stabbed each other or if any suspects are being sought.

On Monday afternoon, Sam and J.D., residents of the street for five years, said the killing was part of a pattern of mayhem in the area across from Washington Park.

"Someone threw a wine bottle at my window a couple days ago," said J.D., who declined to give his last name. He pointed to a mark on his porch where the bottle shattered. Liquor bottles and red plastic Solo cups littered his front yard.

"We're moving in a couple months," J.D. said. "Had enough of this craziness."

Asaf Elkayam, who manages 11 apartments on the block-long street, called the killing an isolated incident. He said a lot of money and effort went into making the block safer, and he blamed "riffraff" coming from other parts of town for causing trouble.

"If you have a problem, don't bring it into our neighborhood," Elkayam said.

Another Elberon Place resident said he was shocked by the crime.

"I never heard of anything like that in this neighborhood," said Will Pettit, a firefighter who moved into the neighborhood in June.

Several people at the scene said Haynie attended Albany High School. Two students from Albany High rode by on bikes to pay their respects in the empty lot in the middle of the block littered with blue shards of broken bottles of vodka. They remarked that the Haynie had been a "good kid."

"This is so messed up," said Isaiah Ming, one of the students, looking at the memorial, the candles of which had been blown out by the wind.